Garbage immediately.
Think of it as paying someone the value of the chicken to NOT get really sick, potentially miss days of work and spend quality time with your bathroom and potentially urgent care.
And no, no matter how much or how long you cook it it will still not be safe.

Did the chicken start the night frozen? Was it still pretty cold in the morning? If not, then bye-bye. Poultry or fish or ground meat, I'd never recommend eating if it was at room temp all night. A solid cut of red meat, though, I would consider.